xref: /aoo42x/main/bridges/source/jni_uno/jni_info.cxx (revision cdf0e10c)

/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_bridges.hxx"
#include "jni_bridge.h"

#include "com/sun/star/uno/RuntimeException.hpp"

#include "jvmaccess/unovirtualmachine.hxx"
#include "rtl/string.hxx"
#include "rtl/strbuf.hxx"
#include "rtl/ustrbuf.hxx"

#include "uno/lbnames.h"


namespace css = ::com::sun::star;
using namespace ::std;
using namespace ::osl;
using namespace ::rtl;

namespace jni_uno
{

//______________________________________________________________________________
JNI_type_info::JNI_type_info(
    JNI_context const & jni, typelib_TypeDescription * td )
    : m_td( td ),
      m_class( 0 )
{
    m_td.makeComplete();
    if (! m_td.get()->bComplete)
    {
        OUStringBuffer buf( 128 );
        buf.appendAscii(
            RTL_CONSTASCII_STRINGPARAM("cannot make type complete: ") );
        buf.append( OUString::unacquired( &m_td.get()->pTypeName ) );
        buf.append( jni.get_stack_trace() );
        throw BridgeRuntimeError( buf.makeStringAndClear() );
    }
}


//______________________________________________________________________________
void JNI_interface_type_info::destroy( JNIEnv * jni_env )
{
    JNI_type_info::destruct( jni_env );
    jni_env->DeleteGlobalRef( m_proxy_ctor );
    jni_env->DeleteGlobalRef( m_type );
    delete [] m_methods;
    delete this;
}

//______________________________________________________________________________
JNI_interface_type_info::JNI_interface_type_info(
    JNI_context const & jni, typelib_TypeDescription * td_ )
    : JNI_type_info( jni, td_ )
{
    OSL_ASSERT( typelib_TypeClass_INTERFACE == m_td.get()->eTypeClass );

    OUString const & uno_name = OUString::unacquired( &m_td.get()->pTypeName );
    JNI_info const * jni_info = jni.get_info();

    JLocalAutoRef jo_class(
        jni,
        find_class(
            jni,
            ( OUStringToOString( uno_name, RTL_TEXTENCODING_JAVA_UTF8 ).
              getStr() ) ) );
    JLocalAutoRef jo_type( jni, create_type( jni, (jclass) jo_class.get() ) );

    // get proxy ctor
    jvalue arg;
    arg.l = jo_class.get();
    JLocalAutoRef jo_proxy_ctor(
        jni, jni->CallStaticObjectMethodA(
            jni_info->m_class_JNI_proxy,
            jni_info->m_method_JNI_proxy_get_proxy_ctor, &arg ) );

    if (is_XInterface( m_td.get()->pWeakRef ))
    {
        m_methods = 0; // no methods
    }
    else
    {
        // retrieve method ids for all direct members
        try
        {
            typelib_InterfaceTypeDescription * td =
                reinterpret_cast< typelib_InterfaceTypeDescription * >(
                    m_td.get() );
            m_methods = new jmethodID[ td->nMapFunctionIndexToMemberIndex ];
            sal_Int32 nMethodIndex = 0;
            typelib_TypeDescriptionReference ** ppMembers = td->ppMembers;
            sal_Int32 nMembers = td->nMembers;

            for ( sal_Int32 nPos = 0; nPos < nMembers; ++nPos )
            {
                TypeDescr member_td( ppMembers[ nPos ] );

                OStringBuffer sig_buf( 64 );

                if (typelib_TypeClass_INTERFACE_METHOD ==
                      member_td.get()->eTypeClass) // method
                {
                    typelib_InterfaceMethodTypeDescription * method_td =
                        reinterpret_cast<
                          typelib_InterfaceMethodTypeDescription * >(
                              member_td.get() );

                    sig_buf.append( '(' );
                    for ( sal_Int32 i = 0; i < method_td->nParams; ++i )
                    {
                        typelib_MethodParameter const & param =
                            method_td->pParams[ i ];
                        if (param.bOut)
                            sig_buf.append( '[' );
                        JNI_info::append_sig( &sig_buf, param.pTypeRef );
                    }
                    sig_buf.append( ')' );
                    JNI_info::append_sig( &sig_buf, method_td->pReturnTypeRef );

                    OString method_signature( sig_buf.makeStringAndClear() );
                    OString method_name(
                        OUStringToOString( OUString::unacquired(
                                               &method_td->aBase.pMemberName ),
                                           RTL_TEXTENCODING_JAVA_UTF8 ) );

                    m_methods[ nMethodIndex ] = jni->GetMethodID(
                        (jclass) jo_class.get(), method_name.getStr(),
                        method_signature.getStr() );
                    jni.ensure_no_exception();
                    OSL_ASSERT( 0 != m_methods[ nMethodIndex ] );
                    ++nMethodIndex;
                }
                else // attribute
                {
                    OSL_ASSERT(
                        typelib_TypeClass_INTERFACE_ATTRIBUTE ==
                          member_td.get()->eTypeClass );
                    typelib_InterfaceAttributeTypeDescription * attribute_td =
                        reinterpret_cast<
                          typelib_InterfaceAttributeTypeDescription * >(
                              member_td.get() );

                    // type sig
                    JNI_info::append_sig(
                        &sig_buf, attribute_td->pAttributeTypeRef );
                    OString type_sig( sig_buf.makeStringAndClear() );
                    sig_buf.ensureCapacity( 64 );
                    // member name
                    OUString const & member_name =
                        OUString::unacquired(
                            &attribute_td->aBase.pMemberName );

                    // getter
                    sig_buf.append( RTL_CONSTASCII_STRINGPARAM("()") );
                    sig_buf.append( type_sig );
                    OString method_signature( sig_buf.makeStringAndClear() );
                    OUStringBuffer name_buf( 3 + member_name.getLength() );
                    name_buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("get") );
                    name_buf.append( member_name );
                    OString method_name(
                        OUStringToOString(
                            name_buf.makeStringAndClear(),
                            RTL_TEXTENCODING_JAVA_UTF8 ) );
                    m_methods[ nMethodIndex ] = jni->GetMethodID(
                        (jclass) jo_class.get(), method_name.getStr(),
                        method_signature.getStr() );
                    jni.ensure_no_exception();
                    OSL_ASSERT( 0 != m_methods[ nMethodIndex ] );
                    ++nMethodIndex;
                    if (! attribute_td->bReadOnly)
                    {
                        // setter
                        sig_buf.ensureCapacity( 64 );
                        sig_buf.append( '(' );
                        sig_buf.append( type_sig );
                        sig_buf.append( RTL_CONSTASCII_STRINGPARAM(")V") );
                        method_signature = sig_buf.makeStringAndClear();
                        name_buf.ensureCapacity( 3 + member_name.getLength() );
                        name_buf.appendAscii(
                            RTL_CONSTASCII_STRINGPARAM("set") );
                        name_buf.append( member_name );
                        method_name = OUStringToOString(
                            name_buf.makeStringAndClear(),
                            RTL_TEXTENCODING_JAVA_UTF8 );
                        m_methods[ nMethodIndex ] = jni->GetMethodID(
                            (jclass) jo_class.get(), method_name.getStr(),
                            method_signature.getStr() );
                        jni.ensure_no_exception();
                        OSL_ASSERT( 0 != m_methods[ nMethodIndex ] );
                        ++nMethodIndex;
                    }
                }
            }
        }
        catch (...)
        {
            delete [] m_methods;
            throw;
        }
    }
    m_class = (jclass) jni->NewGlobalRef( jo_class.get() );
    m_type = jni->NewGlobalRef( jo_type.get() );
    m_proxy_ctor = jni->NewGlobalRef( jo_proxy_ctor.get() );
}


//______________________________________________________________________________
void JNI_compound_type_info::destroy( JNIEnv * jni_env )
{
    JNI_type_info::destruct( jni_env );
    delete [] m_fields;
    delete this;
}

//______________________________________________________________________________
JNI_compound_type_info::JNI_compound_type_info(
    JNI_context const & jni, typelib_TypeDescription * td_ )
    : JNI_type_info( jni, td_ ),
      m_exc_ctor( 0 ),
      m_fields( 0 )
{
    OSL_ASSERT( typelib_TypeClass_STRUCT == m_td.get()->eTypeClass ||
                typelib_TypeClass_EXCEPTION == m_td.get()->eTypeClass );
    typelib_CompoundTypeDescription * td =
        reinterpret_cast< typelib_CompoundTypeDescription * >( m_td.get() );

    OUString const & uno_name =
        OUString::unacquired( &((typelib_TypeDescription *)td)->pTypeName );

    // Erase type arguments of instantiated polymorphic struct types:
    OUString nucleus;
    sal_Int32 i = uno_name.indexOf( '<' );
    if ( i < 0 ) {
        nucleus = uno_name;
    } else {
        nucleus = uno_name.copy( 0, i );
    }
    JLocalAutoRef jo_class(
        jni,
        find_class(
            jni,
            OUStringToOString(
                nucleus, RTL_TEXTENCODING_JAVA_UTF8 ).getStr() ) );

    JNI_info const * jni_info = jni.get_info();

    if (typelib_TypeClass_EXCEPTION == m_td.get()->eTypeClass)
    {
        // retrieve exc ctor( msg )
        m_exc_ctor = jni->GetMethodID(
            (jclass) jo_class.get(), "<init>", "(Ljava/lang/String;)V" );
        jni.ensure_no_exception();
        OSL_ASSERT( 0 != m_exc_ctor );
    }

    // retrieve info for base type
    typelib_TypeDescription * base_td =
        reinterpret_cast< typelib_TypeDescription * >(
            td->pBaseTypeDescription );
    m_base = (0 == base_td ? 0 : jni_info->get_type_info( jni, base_td ));

    try
    {
        if (type_equals(
                ((typelib_TypeDescription *)td)->pWeakRef,
                jni_info->m_Exception_type.getTypeLibType() ) ||
            type_equals(
                ((typelib_TypeDescription *)td)->pWeakRef,
                jni_info->m_RuntimeException_type.getTypeLibType() ))
        {
            m_fields = new jfieldID[ 2 ];
            m_fields[ 0 ] = 0; // special Throwable.getMessage()
            // field Context
            m_fields[ 1 ] = jni->GetFieldID(
                (jclass) jo_class.get(), "Context", "Ljava/lang/Object;" );
            jni.ensure_no_exception();
            OSL_ASSERT( 0 != m_fields[ 1 ] );
        }
        else
        {
            // retrieve field ids for all direct members
            sal_Int32 nMembers = td->nMembers;
            m_fields = new jfieldID[ nMembers ];

            for ( sal_Int32 nPos = 0; nPos < nMembers; ++nPos )
            {
                OString sig;
                if (td->aBase.eTypeClass == typelib_TypeClass_STRUCT
                    && reinterpret_cast< typelib_StructTypeDescription * >(
                        td)->pParameterizedTypes != 0
                    && reinterpret_cast< typelib_StructTypeDescription * >(
                        td)->pParameterizedTypes[nPos])
                {
                    sig = OString(
                        RTL_CONSTASCII_STRINGPARAM("Ljava/lang/Object;"));
                } else {
                    OStringBuffer sig_buf( 32 );
                    JNI_info::append_sig( &sig_buf, td->ppTypeRefs[ nPos ] );
                    sig = sig_buf.makeStringAndClear();
                }

                OString member_name(
                    OUStringToOString(
                        OUString::unacquired( &td->ppMemberNames[ nPos ] ),
                        RTL_TEXTENCODING_JAVA_UTF8 ) );

                m_fields[ nPos ] = jni->GetFieldID(
                    (jclass) jo_class.get(), member_name.getStr(),
                    sig.getStr() );
                jni.ensure_no_exception();
                OSL_ASSERT( 0 != m_fields[ nPos ] );
            }
        }
    }
    catch (...)
    {
        delete [] m_fields;
        throw;
    }

    m_class = (jclass) jni->NewGlobalRef( jo_class.get() );
}


//______________________________________________________________________________
JNI_type_info const * JNI_info::create_type_info(
    JNI_context const & jni, typelib_TypeDescription * td ) const
{
    OUString const & uno_name = OUString::unacquired( &td->pTypeName );

    JNI_type_info * new_info;
    switch (td->eTypeClass)
    {
    case typelib_TypeClass_STRUCT:
    case typelib_TypeClass_EXCEPTION:
    {
        new_info = new JNI_compound_type_info( jni, td );
        break;
    }
    case typelib_TypeClass_INTERFACE:
    {
        new_info = new JNI_interface_type_info( jni, td );
        break;
    }
    default:
    {
        OUStringBuffer buf( 128 );
        buf.appendAscii(
            RTL_CONSTASCII_STRINGPARAM("type info not supported for ") );
        buf.append( uno_name );
        buf.append( jni.get_stack_trace() );
        throw BridgeRuntimeError( buf.makeStringAndClear() );
    }
    }

    // look up
    JNI_type_info * info;
    ClearableMutexGuard guard( m_mutex );
    JNI_type_info_holder & holder = m_type_map[ uno_name ];
    if (0 == holder.m_info) // new insertion
    {
        holder.m_info = new_info;
        guard.clear();
        info = new_info;
    }
    else // inserted in the meantime
    {
        info = holder.m_info;
        guard.clear();
        new_info->destroy( jni.get_jni_env() );
    }
    return info;
}

//______________________________________________________________________________
JNI_type_info const * JNI_info::get_type_info(
    JNI_context const & jni, typelib_TypeDescription * td ) const
{
    if (is_XInterface( td->pWeakRef ))
    {
        return m_XInterface_type_info;
    }

    OUString const & uno_name = OUString::unacquired( &td->pTypeName );
    JNI_type_info const * info;
    ClearableMutexGuard guard( m_mutex );

    t_str2type::const_iterator iFind( m_type_map.find( uno_name ) );
    if (iFind == m_type_map.end())
    {
        guard.clear();
        info = create_type_info( jni, td );
    }
    else
    {
        info = iFind->second.m_info;
    }

    return info;
}

//______________________________________________________________________________
JNI_type_info const * JNI_info::get_type_info(
    JNI_context const & jni, typelib_TypeDescriptionReference * type ) const
{
    if (is_XInterface( type ))
    {
        return m_XInterface_type_info;
    }

    OUString const & uno_name = OUString::unacquired( &type->pTypeName );
    JNI_type_info const * info;
    ClearableMutexGuard guard( m_mutex );
    t_str2type::const_iterator iFind( m_type_map.find( uno_name ) );
    if (iFind == m_type_map.end())
    {
        guard.clear();
        TypeDescr td( type );
        info = create_type_info( jni, td.get() );
    }
    else
    {
        info = iFind->second.m_info;
    }

    return info;
}

//______________________________________________________________________________
JNI_type_info const * JNI_info::get_type_info(
    JNI_context const & jni, OUString const & uno_name ) const
{
    if (uno_name.equalsAsciiL(
            RTL_CONSTASCII_STRINGPARAM("com.sun.star.uno.XInterface") ))
    {
        return m_XInterface_type_info;
    }

    JNI_type_info const * info;
    ClearableMutexGuard guard( m_mutex );
    t_str2type::const_iterator iFind( m_type_map.find( uno_name ) );
    if (iFind == m_type_map.end())
    {
        guard.clear();
        css::uno::TypeDescription td( uno_name );
        if (! td.is())
        {
            OUStringBuffer buf( 128 );
            buf.appendAscii(
                RTL_CONSTASCII_STRINGPARAM("UNO type not found: ") );
            buf.append( uno_name );
            buf.append( jni.get_stack_trace() );
            throw BridgeRuntimeError( buf.makeStringAndClear() );
        }
        info = create_type_info( jni, td.get() );
    }
    else
    {
        info = iFind->second.m_info;
    }

    return info;
}

//______________________________________________________________________________
JNI_info::JNI_info(
    JNIEnv * jni_env, jobject class_loader, jclass classClass,
    jmethodID methodForName )
    : m_class_Class( classClass ),
      m_method_Class_forName( methodForName ),
      m_class_JNI_proxy( 0 ),
      m_XInterface_queryInterface_td(
        (reinterpret_cast< typelib_InterfaceTypeDescription * >(
            css::uno::TypeDescription(
                ::getCppuType(
                    (css::uno::Reference< css::uno::XInterface > const *)0 ) )
            .get())->ppMembers[ 0 ] ) ),
      m_Exception_type( ::getCppuType( (css::uno::Exception const *)0 ) ),
      m_RuntimeException_type(
          ::getCppuType( (css::uno::RuntimeException const *)0 ) ),
      m_void_type( ::getCppuVoidType() ),
      m_XInterface_type_info( 0 )
{
    JNI_context jni( this, jni_env, class_loader ); // !no proper jni_info!

    // class lookup
    JLocalAutoRef jo_Object(
        jni, find_class( jni, "java.lang.Object" ) );
    JLocalAutoRef jo_Class(
        jni, find_class( jni, "java.lang.Class" ) );
    JLocalAutoRef jo_Throwable(
        jni, find_class( jni, "java.lang.Throwable" ) );
    JLocalAutoRef jo_Character(
        jni, find_class( jni, "java.lang.Character" ) );
    JLocalAutoRef jo_Boolean(
        jni, find_class( jni, "java.lang.Boolean" ) );
    JLocalAutoRef jo_Byte(
        jni, find_class( jni, "java.lang.Byte" ) );
    JLocalAutoRef jo_Short(
        jni, find_class( jni, "java.lang.Short" ) );
    JLocalAutoRef jo_Integer(
        jni, find_class( jni, "java.lang.Integer" ) );
    JLocalAutoRef jo_Long(
        jni, find_class( jni, "java.lang.Long" ) );
    JLocalAutoRef jo_Float(
        jni, find_class( jni, "java.lang.Float" ) );
    JLocalAutoRef jo_Double(
        jni, find_class( jni, "java.lang.Double" ) );
    JLocalAutoRef jo_String(
        jni, find_class( jni, "java.lang.String" ) );
    JLocalAutoRef jo_RuntimeException(
        jni, find_class( jni, "com.sun.star.uno.RuntimeException" ) );
    JLocalAutoRef jo_UnoRuntime(
        jni, find_class( jni, "com.sun.star.uno.UnoRuntime" ) );
    JLocalAutoRef jo_Any(
        jni, find_class( jni, "com.sun.star.uno.Any" ) );
    JLocalAutoRef jo_Enum(
        jni, find_class( jni, "com.sun.star.uno.Enum" ) );
    JLocalAutoRef jo_Type(
        jni, find_class( jni, "com.sun.star.uno.Type" ) );
    JLocalAutoRef jo_TypeClass(
        jni, find_class( jni, "com.sun.star.uno.TypeClass" ) );
    JLocalAutoRef jo_IEnvironment(
        jni, find_class( jni, "com.sun.star.uno.IEnvironment" ) );
    JLocalAutoRef jo_JNI_proxy(
        jni, find_class( jni, "com.sun.star.bridges.jni_uno.JNI_proxy" ) );

    // method Object.toString()
    m_method_Object_toString = jni->GetMethodID(
        (jclass) jo_Object.get(), "toString", "()Ljava/lang/String;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Object_toString );
    // method Class.getName()
    m_method_Class_getName = jni->GetMethodID(
        (jclass) jo_Class.get(), "getName", "()Ljava/lang/String;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Class_getName );

    // method Throwable.getMessage()
    m_method_Throwable_getMessage = jni->GetMethodID(
        (jclass) jo_Throwable.get(), "getMessage", "()Ljava/lang/String;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Throwable_getMessage );

    // method Character.charValue()
    m_method_Character_charValue = jni->GetMethodID(
        (jclass) jo_Character.get(), "charValue", "()C" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Character_charValue );
    // method Boolean.booleanValue()
    m_method_Boolean_booleanValue = jni->GetMethodID(
        (jclass) jo_Boolean.get(), "booleanValue", "()Z" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Boolean_booleanValue );
    // method Byte.byteValue()
    m_method_Byte_byteValue = jni->GetMethodID(
        (jclass) jo_Byte.get(), "byteValue", "()B" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Byte_byteValue );
    // method Short.shortValue()
    m_method_Short_shortValue = jni->GetMethodID(
        (jclass) jo_Short.get(), "shortValue", "()S" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Short_shortValue );
    // method Integer.intValue()
    m_method_Integer_intValue = jni->GetMethodID(
        (jclass) jo_Integer.get(), "intValue", "()I" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Integer_intValue );
    // method Long.longValue()
    m_method_Long_longValue = jni->GetMethodID(
        (jclass) jo_Long.get(), "longValue", "()J" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Long_longValue );
    // method Float.floatValue()
    m_method_Float_floatValue = jni->GetMethodID(
        (jclass) jo_Float.get(), "floatValue", "()F" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Float_floatValue );
    // method Double.doubleValue()
    m_method_Double_doubleValue = jni->GetMethodID(
        (jclass) jo_Double.get(), "doubleValue", "()D" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_Double_doubleValue );

    // ctor Character( char )
    m_ctor_Character_with_char = jni->GetMethodID(
        (jclass) jo_Character.get(), "<init>", "(C)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Character_with_char );
    // ctor Boolean( boolean )
    m_ctor_Boolean_with_boolean = jni->GetMethodID(
        (jclass) jo_Boolean.get(), "<init>", "(Z)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Boolean_with_boolean );
    // ctor Byte( byte )
    m_ctor_Byte_with_byte = jni->GetMethodID(
        (jclass) jo_Byte.get(), "<init>", "(B)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Byte_with_byte );
    // ctor Short( short )
    m_ctor_Short_with_short = jni->GetMethodID(
        (jclass) jo_Short.get(), "<init>", "(S)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Short_with_short );
    // ctor Integer( int )
    m_ctor_Integer_with_int = jni->GetMethodID(
        (jclass) jo_Integer.get(), "<init>", "(I)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Integer_with_int );
    // ctor Long( long )
    m_ctor_Long_with_long = jni->GetMethodID(
        (jclass) jo_Long.get(), "<init>", "(J)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Long_with_long );
    // ctor Float( float )
    m_ctor_Float_with_float = jni->GetMethodID(
        (jclass) jo_Float.get(), "<init>", "(F)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Float_with_float );
    // ctor Double( double )
    m_ctor_Double_with_double = jni->GetMethodID(
        (jclass) jo_Double.get(), "<init>", "(D)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Double_with_double );

    // static method UnoRuntime.generateOid()
    m_method_UnoRuntime_generateOid = jni->GetStaticMethodID(
        (jclass) jo_UnoRuntime.get(),
        "generateOid", "(Ljava/lang/Object;)Ljava/lang/String;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_UnoRuntime_generateOid );
    // static method UnoRuntime.queryInterface()
    m_method_UnoRuntime_queryInterface = jni->GetStaticMethodID(
        (jclass) jo_UnoRuntime.get(),
        "queryInterface",
        "(Lcom/sun/star/uno/Type;Ljava/lang/Object;)Ljava/lang/Object;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_UnoRuntime_queryInterface );

    // field Enum.m_value
    m_field_Enum_m_value = jni->GetFieldID(
        (jclass) jo_Enum.get(), "m_value", "I" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_Enum_m_value );

    // static method TypeClass.fromInt()
    m_method_TypeClass_fromInt = jni->GetStaticMethodID(
        (jclass) jo_TypeClass.get(),
        "fromInt", "(I)Lcom/sun/star/uno/TypeClass;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_TypeClass_fromInt );

    // ctor Type( Class )
    m_ctor_Type_with_Class = jni->GetMethodID(
        (jclass) jo_Type.get(), "<init>", "(Ljava/lang/Class;)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Type_with_Class );
    // ctor Type( String, TypeClass )
    m_ctor_Type_with_Name_TypeClass = jni->GetMethodID(
        (jclass) jo_Type.get(),
        "<init>", "(Ljava/lang/String;Lcom/sun/star/uno/TypeClass;)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Type_with_Name_TypeClass );
    // field Type._typeName
    m_field_Type__typeName = jni->GetFieldID(
        (jclass) jo_Type.get(), "_typeName", "Ljava/lang/String;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_Type__typeName );

    // ctor Any( Type, Object )
    m_ctor_Any_with_Type_Object = jni->GetMethodID(
        (jclass) jo_Any.get(),
        "<init>", "(Lcom/sun/star/uno/Type;Ljava/lang/Object;)V" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_ctor_Any_with_Type_Object );

    // field Any._type
    m_field_Any__type = jni->GetFieldID(
        (jclass) jo_Any.get(), "_type", "Lcom/sun/star/uno/Type;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_Any__type );
    // field Any._object
    m_field_Any__object = jni->GetFieldID(
        (jclass) jo_Any.get(), "_object", "Ljava/lang/Object;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_Any__object );

    // method IEnvironment.getRegisteredInterface()
    m_method_IEnvironment_getRegisteredInterface = jni->GetMethodID(
        (jclass) jo_IEnvironment.get(),
        "getRegisteredInterface",
        "(Ljava/lang/String;Lcom/sun/star/uno/Type;)Ljava/lang/Object;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_IEnvironment_getRegisteredInterface );
    // method IEnvironment.registerInterface()
    m_method_IEnvironment_registerInterface = jni->GetMethodID(
        (jclass) jo_IEnvironment.get(), "registerInterface",
        "(Ljava/lang/Object;[Ljava/lang/String;Lcom/sun/star/uno/Type;)"
        "Ljava/lang/Object;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_IEnvironment_registerInterface );

    // static method JNI_proxy.get_proxy_ctor()
    m_method_JNI_proxy_get_proxy_ctor = jni->GetStaticMethodID(
        (jclass) jo_JNI_proxy.get(), "get_proxy_ctor",
        "(Ljava/lang/Class;)Ljava/lang/reflect/Constructor;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_JNI_proxy_get_proxy_ctor );
    // static method JNI_proxy.create()
    m_method_JNI_proxy_create = jni->GetStaticMethodID(
        (jclass) jo_JNI_proxy.get(), "create",
        "(JLcom/sun/star/uno/IEnvironment;JJLcom/sun/star/uno/Type;Ljava/lang"
        "/String;Ljava/lang/reflect/Constructor;)Ljava/lang/Object;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_method_JNI_proxy_create );
    // field JNI_proxy.m_receiver_handle
    m_field_JNI_proxy_m_receiver_handle = jni->GetFieldID(
        (jclass) jo_JNI_proxy.get(), "m_receiver_handle", "J" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_JNI_proxy_m_receiver_handle );
    // field JNI_proxy.m_td_handle
    m_field_JNI_proxy_m_td_handle = jni->GetFieldID(
        (jclass) jo_JNI_proxy.get(), "m_td_handle", "J" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_JNI_proxy_m_td_handle );
    // field JNI_proxy.m_type
    m_field_JNI_proxy_m_type = jni->GetFieldID(
        (jclass) jo_JNI_proxy.get(), "m_type", "Lcom/sun/star/uno/Type;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_JNI_proxy_m_type );
    // field JNI_proxy.m_oid
    m_field_JNI_proxy_m_oid = jni->GetFieldID(
        (jclass) jo_JNI_proxy.get(), "m_oid", "Ljava/lang/String;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != m_field_JNI_proxy_m_oid );

    // get java env
    OUString java_env_type_name( RTL_CONSTASCII_USTRINGPARAM(UNO_LB_JAVA) );
    JLocalAutoRef jo_java(
        jni, ustring_to_jstring( jni, java_env_type_name.pData ) );
    jvalue args[ 2 ];
    args[ 0 ].l = jo_java.get();
    args[ 1 ].l = 0;
    jmethodID method_getEnvironment = jni->GetStaticMethodID(
        (jclass) jo_UnoRuntime.get(), "getEnvironment",
        "(Ljava/lang/String;Ljava/lang/Object;)"
        "Lcom/sun/star/uno/IEnvironment;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != method_getEnvironment );
    JLocalAutoRef jo_java_env(
        jni, jni->CallStaticObjectMethodA(
            (jclass) jo_UnoRuntime.get(), method_getEnvironment, args ) );

    // get com.sun.star.uno.Any.VOID
    jfieldID field_Any_VOID = jni->GetStaticFieldID(
        (jclass) jo_Any.get(), "VOID", "Lcom/sun/star/uno/Any;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != field_Any_VOID );
    JLocalAutoRef jo_Any_VOID(
        jni, jni->GetStaticObjectField(
            (jclass) jo_Any.get(), field_Any_VOID ) );
    // get com.sun.star.uno.Type.UNSIGNED_SHORT
    jfieldID field_Type_UNSIGNED_SHORT = jni->GetStaticFieldID(
        (jclass) jo_Type.get(), "UNSIGNED_SHORT", "Lcom/sun/star/uno/Type;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != field_Type_UNSIGNED_SHORT );
    JLocalAutoRef jo_Type_UNSIGNED_SHORT(
        jni, jni->GetStaticObjectField(
            (jclass) jo_Type.get(), field_Type_UNSIGNED_SHORT ) );
    // get com.sun.star.uno.Type.UNSIGNED_LONG
    jfieldID field_Type_UNSIGNED_LONG = jni->GetStaticFieldID(
        (jclass) jo_Type.get(), "UNSIGNED_LONG", "Lcom/sun/star/uno/Type;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != field_Type_UNSIGNED_LONG );
    JLocalAutoRef jo_Type_UNSIGNED_LONG(
        jni, jni->GetStaticObjectField(
            (jclass) jo_Type.get(), field_Type_UNSIGNED_LONG ) );
    // get com.sun.star.uno.Type.UNSIGNED_HYPER
    jfieldID field_Type_UNSIGNED_HYPER = jni->GetStaticFieldID(
        (jclass) jo_Type.get(), "UNSIGNED_HYPER", "Lcom/sun/star/uno/Type;" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != field_Type_UNSIGNED_HYPER );
    JLocalAutoRef jo_Type_UNSIGNED_HYPER(
        jni, jni->GetStaticObjectField(
            (jclass) jo_Type.get(), field_Type_UNSIGNED_HYPER ) );

    // make global refs
    m_class_UnoRuntime =
        (jclass) jni->NewGlobalRef( jo_UnoRuntime.get() );
    m_class_RuntimeException =
        (jclass) jni->NewGlobalRef( jo_RuntimeException.get() );
    m_class_Any =
        (jclass) jni->NewGlobalRef( jo_Any.get() );
    m_class_Type =
        (jclass) jni->NewGlobalRef( jo_Type.get() );
    m_class_TypeClass =
        (jclass) jni->NewGlobalRef( jo_TypeClass.get() );
    m_class_JNI_proxy =
        (jclass) jni->NewGlobalRef( jo_JNI_proxy.get() );

    m_class_Character =
        (jclass) jni->NewGlobalRef( jo_Character.get() );
    m_class_Boolean =
        (jclass) jni->NewGlobalRef( jo_Boolean.get() );
    m_class_Byte =
        (jclass) jni->NewGlobalRef( jo_Byte.get() );
    m_class_Short =
        (jclass) jni->NewGlobalRef( jo_Short.get() );
    m_class_Integer =
        (jclass) jni->NewGlobalRef( jo_Integer.get() );
    m_class_Long =
        (jclass) jni->NewGlobalRef( jo_Long.get() );
    m_class_Float =
        (jclass) jni->NewGlobalRef( jo_Float.get() );
    m_class_Double =
        (jclass) jni->NewGlobalRef( jo_Double.get() );
    m_class_String =
        (jclass) jni->NewGlobalRef( jo_String.get() );
    m_class_Object =
        (jclass) jni->NewGlobalRef( jo_Object.get() );
    m_class_Class =
        (jclass) jni->NewGlobalRef( m_class_Class );

    m_object_Any_VOID =
        jni->NewGlobalRef( jo_Any_VOID.get() );
    m_object_Type_UNSIGNED_SHORT =
        jni->NewGlobalRef( jo_Type_UNSIGNED_SHORT.get() );
    m_object_Type_UNSIGNED_LONG =
        jni->NewGlobalRef( jo_Type_UNSIGNED_LONG.get() );
    m_object_Type_UNSIGNED_HYPER =
        jni->NewGlobalRef( jo_Type_UNSIGNED_HYPER.get() );
    m_object_java_env = jni->NewGlobalRef( jo_java_env.get() );

    try
    {
        css::uno::TypeDescription XInterface_td(
            ::getCppuType(
                (css::uno::Reference< css::uno::XInterface > const *)0 ) );
        m_XInterface_type_info =
            new JNI_interface_type_info( jni, XInterface_td.get() );
    }
    catch (...)
    {
        destruct( jni_env );
        throw;
    }
}

//______________________________________________________________________________
void JNI_info::destruct( JNIEnv * jni_env )
{
    t_str2type::const_iterator iPos( m_type_map.begin() );
    t_str2type::const_iterator const iEnd( m_type_map.begin() );
    for ( ; iPos != iEnd; ++iPos )
    {
        iPos->second.m_info->destroy( jni_env );
    }
    if (0 != m_XInterface_type_info)
    {
        const_cast< JNI_interface_type_info * >(
            m_XInterface_type_info )->destroy( jni_env );
    }

    // free global refs
    jni_env->DeleteGlobalRef( m_object_java_env );
    jni_env->DeleteGlobalRef( m_object_Any_VOID );
    jni_env->DeleteGlobalRef( m_object_Type_UNSIGNED_SHORT );
    jni_env->DeleteGlobalRef( m_object_Type_UNSIGNED_LONG );
    jni_env->DeleteGlobalRef( m_object_Type_UNSIGNED_HYPER );

    jni_env->DeleteGlobalRef( m_class_Class );
    jni_env->DeleteGlobalRef( m_class_Object );
    jni_env->DeleteGlobalRef( m_class_String );
    jni_env->DeleteGlobalRef( m_class_Double );
    jni_env->DeleteGlobalRef( m_class_Float );
    jni_env->DeleteGlobalRef( m_class_Long );
    jni_env->DeleteGlobalRef( m_class_Integer );
    jni_env->DeleteGlobalRef( m_class_Short );
    jni_env->DeleteGlobalRef( m_class_Byte );
    jni_env->DeleteGlobalRef( m_class_Boolean );
    jni_env->DeleteGlobalRef( m_class_Character );

    jni_env->DeleteGlobalRef( m_class_JNI_proxy );
    jni_env->DeleteGlobalRef( m_class_RuntimeException );
    jni_env->DeleteGlobalRef( m_class_UnoRuntime );
    jni_env->DeleteGlobalRef( m_class_TypeClass );
    jni_env->DeleteGlobalRef( m_class_Type );
    jni_env->DeleteGlobalRef( m_class_Any );
}

//______________________________________________________________________________
JNI_info const * JNI_info::get_jni_info(
    rtl::Reference< jvmaccess::UnoVirtualMachine > const & uno_vm )
{
    // !!!no JNI_info available at JNI_context!!!
    ::jvmaccess::VirtualMachine::AttachGuard guard(
        uno_vm->getVirtualMachine() );
    JNIEnv * jni_env = guard.getEnvironment();
    JNI_context jni(
        0, jni_env, static_cast< jobject >(uno_vm->getClassLoader()) );

    jclass jo_class;
    jmethodID jo_forName;
    jni.getClassForName( &jo_class, &jo_forName );
    jni.ensure_no_exception();
    JLocalAutoRef jo_JNI_info_holder(
        jni,
        jni.findClass(
            "com.sun.star.bridges.jni_uno.JNI_info_holder", jo_class,
            jo_forName, false ) );
    // field JNI_info_holder.m_jni_info_handle
    jfieldID field_s_jni_info_handle =
        jni->GetStaticFieldID(
            (jclass) jo_JNI_info_holder.get(), "s_jni_info_handle", "J" );
    jni.ensure_no_exception();
    OSL_ASSERT( 0 != field_s_jni_info_handle );

    JNI_info const * jni_info =
        reinterpret_cast< JNI_info const * >(
            jni->GetStaticLongField(
                (jclass) jo_JNI_info_holder.get(), field_s_jni_info_handle ) );
    if (0 == jni_info) // un-initialized?
    {
        JNI_info * new_info = new JNI_info(
            jni_env, static_cast< jobject >(uno_vm->getClassLoader()), jo_class,
            jo_forName );

        ClearableMutexGuard g( Mutex::getGlobalMutex() );
        jni_info =
            reinterpret_cast< JNI_info const * >(
                jni->GetStaticLongField(
                    (jclass) jo_JNI_info_holder.get(),
                    field_s_jni_info_handle ) );
        if (0 == jni_info) // still un-initialized?
        {
            jni->SetStaticLongField(
                (jclass) jo_JNI_info_holder.get(), field_s_jni_info_handle,
                reinterpret_cast< jlong >( new_info ) );
            jni_info = new_info;
        }
        else
        {
            g.clear();
            new_info->destroy( jni_env );
        }
    }

    return jni_info;
}

}

extern "C"
{

//------------------------------------------------------------------------------
JNIEXPORT void
JNICALL Java_com_sun_star_bridges_jni_1uno_JNI_1info_1holder_finalize__J(
    JNIEnv * jni_env, jobject, jlong jni_info_handle )
    SAL_THROW_EXTERN_C()
{
    ::jni_uno::JNI_info * jni_info =
          reinterpret_cast< ::jni_uno::JNI_info * >( jni_info_handle );
    jni_info->destroy( jni_env );
}

}