JRE 1.3 rt.jar is the JAR file for JRE 1.3 RT (Runtime) libraries. JRE (Java Runtime) 7 is the runtime environment included in JDK 1.3. JRE 1.3 rt.jar libraries are divided into 6 packages:

com.* - Internal Oracle and Sun Microsystems libraries
java.* - Standard Java API libraries.
javax.* - Extended Java API libraries.
jdk.* -  JDK supporting libraries.
org.* - Third party libraries.
sun.* - Old libraries developed by Sun Microsystems.

JAR File Information:

Directory of C:\fyicenter\jdk-1.3.1_28\jre\lib
      13,761,465 rt.jar

Package Content:

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sun/security/provider/DSAKeyFactory.class
sun/security/provider/DSAKeyPairGenerator.class
sun/security/provider/DSAParameterGenerator.class
sun/security/provider/DSAParameters.class
sun/security/provider/DSAPrivateKey.class
sun/security/provider/DSAPublicKey.class
sun/security/provider/IdentityDatabase.class
sun/security/provider/JavaKeyStore.class
sun/security/provider/KeyProtector.class
sun/security/provider/MD5.class
sun/security/provider/NativeSeedGenerator.class
sun/security/provider/PolicyFile.class
sun/security/provider/PolicyParser.class
sun/security/provider/PolicyPermissions.class
sun/security/provider/SecureRandom.class
sun/security/provider/SeedGenerator.class
sun/security/provider/SHA.class
sun/security/provider/Sun.class
sun/security/provider/SystemIdentity.class
sun/security/provider/SystemSigner.class
sun/security/provider/X509Factory.class
sun/security/tools/AddEntryDoneButtonListener.class
sun/security/tools/AddPermButtonListener.class
sun/security/tools/CancelButtonListener.class
sun/security/tools/ChangeKeyStoreOKButtonListener.class
sun/security/tools/ConfirmRemovePolicyEntryOKButtonListener.class
sun/security/tools/EditPermButtonListener.class
sun/security/tools/EditPolicyEditPermOKButtonListener.class
sun/security/tools/ErrorOKButtonListener.class
sun/security/tools/FileMenuListener.class
sun/security/tools/JarSigner.class
sun/security/tools/KeyTool.class
sun/security/tools/MainWindowListener.class
sun/security/tools/NewPolicyEntryAddPermOKButtonListener.class
sun/security/tools/OverWriteFileOKButtonListener.class
sun/security/tools/PermissionActionsMenuListener.class
sun/security/tools/PermissionMenuListener.class
sun/security/tools/PermissionNameMenuListener.class
sun/security/tools/PolicyEntry.class
sun/security/tools/PolicyListListener.class
sun/security/tools/PolicyTool.class
sun/security/tools/RemovePermButtonListener.class
sun/security/tools/StatusOKButtonListener.class
sun/security/tools/ToolDialog.class
sun/security/tools/ToolWindow.class
sun/security/tools/ToolWindowListener.class
sun/security/tools/UserSaveCancelButtonListener.class
sun/security/tools/UserSaveNoButtonListener.class
sun/security/tools/UserSaveYesButtonListener.class
sun/security/util/BigInt.class
sun/security/util/BitArray.class
sun/security/util/ByteArrayLexOrder.class
sun/security/util/ByteArrayTagOrder.class
sun/security/util/Debug.class
sun/security/util/DerEncoder.class
sun/security/util/DerIndefLenConverter.class
sun/security/util/DerInputBuffer.class
sun/security/util/DerInputStream.class
sun/security/util/DerOutputStream.class
sun/security/util/DerValue.class
sun/security/util/ManifestDigester.class
sun/security/util/ManifestEntryVerifier.class
sun/security/util/ObjectIdentifier.class
sun/security/util/PropertyExpander.class
sun/security/util/SignatureFile.class
sun/security/util/SignatureFileVerifier.class
sun/security/x509/AlgIdDSA.class
sun/security/x509/AlgorithmId.class
sun/security/x509/AttributeNameEnumeration.class
sun/security/x509/AuthorityKeyIdentifierExtension.class
sun/security/x509/AVA.class
sun/security/x509/BasicConstraintsExtension.class
sun/security/x509/CertAndKeyGen.class
sun/security/x509/CertAttrSet.class
sun/security/x509/CertException.class
sun/security/x509/CertificateAlgorithmId.class
sun/security/x509/CertificateExtensions.class
sun/security/x509/CertificateIssuerName.class
sun/security/x509/CertificateIssuerUniqueIdentity.class
sun/security/x509/CertificatePolicyId.class
sun/security/x509/CertificatePolicyMap.class
sun/security/x509/CertificatePolicySet.class
sun/security/x509/CertificateSerialNumber.class
sun/security/x509/CertificateSubjectName.class
sun/security/x509/CertificateSubjectUniqueIdentity.class
sun/security/x509/CertificateValidity.class
sun/security/x509/CertificateVersion.class
sun/security/x509/CertificateX509Key.class
sun/security/x509/CertParseError.class
sun/security/x509/CRLExtensions.class
sun/security/x509/CRLNumberExtension.class
sun/security/x509/CRLReasonCodeExtension.class
sun/security/x509/DNSName.class
sun/security/x509/EDIPartyName.class
sun/security/x509/Extension.class
sun/security/x509/GeneralName.class
sun/security/x509/GeneralNameInterface.class
sun/security/x509/GeneralNames.class
sun/security/x509/GeneralNamesException.class
sun/security/x509/GeneralSubtree.class
sun/security/x509/GeneralSubtrees.class
sun/security/x509/IPAddressName.class
sun/security/x509/IssuerAlternativeNameExtension.class
sun/security/x509/KeyIdentifier.class
sun/security/x509/KeyUsageExtension.class
sun/security/x509/NameConstraintsExtension.class
sun/security/x509/NetscapeCertTypeExtension.class
sun/security/x509/OIDMap.class
sun/security/x509/OIDName.class
sun/security/x509/OtherName.class
sun/security/x509/PKIXExtensions.class
sun/security/x509/PolicyConstraintsExtension.class
sun/security/x509/PolicyMappingsExtension.class
sun/security/x509/PrivateKeyUsageExtension.class
sun/security/x509/RDN.class
sun/security/x509/ReasonFlags.class
sun/security/x509/RFC822Name.class
sun/security/x509/SerialNumber.class
sun/security/x509/SubjectAlternativeNameExtension.class
sun/security/x509/SubjectKeyIdentifierExtension.class
sun/security/x509/UniqueIdentity.class
sun/security/x509/URIName.class
sun/security/x509/X500Name.class
sun/security/x509/X500Signer.class
sun/security/x509/X509AttributeName.class
sun/security/x509/X509Cert.class
sun/security/x509/X509CertImpl.class
sun/security/x509/X509CertInfo.class
sun/security/x509/X509CRLEntryImpl.class
sun/security/x509/X509CRLImpl.class
sun/security/x509/X509Key.class
sun/tools/jar/CRC32OutputStream.class
sun/tools/jar/JarException.class
sun/tools/jar/JarImageSource.class
sun/tools/jar/JarVerifierStream.class
sun/tools/jar/Main.class
sun/tools/jar/Manifest.class
sun/tools/jar/SignatureFile.class
sun/tools/util/CommandLine.class
sunw/io/Serializable.class
sunw/util/EventListener.class
sunw/util/EventObject.class

⇒ JRE 1.3 sunrsasign.jar - RSA Sign Library

⇐ JRE 1.3 jaws.jar - Java Web Start

⇑ Download and Review JDK 1.3

⇑⇑ FAQ for JDK (Java Development Kit)