Changelog

2.0.0

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Implemented enhancements:

• JPMS support (Java 9, 10 and 11) #374

Fixed bugs:

• Starting 2 different Btrace processes in 1 server ran into infinite loop? #396
• ArrayIndexOutOfBoundsException in VariableMapper #377
• sometimes ctrl-c and select exit will cause jvm throw java.lang.NoSuchMethodError and crash #344
• Problematic remapping of variable slots originally taken by padding #341
• tracing using compiled script may not work #381
• btrace WARNING: java.lang.ArrayIndexOutOfBoundsException: 11818 #387

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v1.3.11.3 (2018-12-17)

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Fixed bugs:

• Stackmap frame incorrectly generated for reused variables of differing length #372

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v1.3.11.2 (2018-12-02)

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Fixed bugs:

• Caused by: java.lang.VerifyError: Bad local variable type #262
• Relax class transformation synchronization #369
• ArrayIndexOutOfBoundsException: 8 at InstrumentingMethodVisitor.java:1337 #367
• java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String #333

Closed issues:

• onThrow.java sample not working #370
• AllMethod regex not working #368
• Stucked when executes ./gradlew build under jdk1.7.0_80 #352

Merged pull requests:

• Refactored out the dot formatting #360 (refactormachine)
• Tracing code remotely #359 (gawaine1988)

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v1.3.11.1 (2018-09-01)

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Fixed bugs:

• Problematic remapping of variable slots originally taken by padding #341
• @Location(value = Kind.ERROR) changes the execution path in case the error is catched and not thrown in code #335
• StringIndexOutOfBoundsException on 1.3.10+ #357
• Retransformation should ignore IllegalStateException if a webapp is stopped in a countainer #351
• ./gradlew buildDistribution can not resolve nebula.ospackage #350
• java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException #349
• Invalid 'libs' configuration [null] #347
• Template extraction is broken for values ending with "$" #345
• NoClassDefFoundError #343
• java.lang.NoClassDefFoundError: Test$1 #332
• regex matching not working #340
• Agent defined named properties ignored for dynamically attached agents #336

Closed issues:

• Could I use btrace to track methods in sun.misc.Unsafe? #348
• How to install btrace on visualVM #342
• The lastest version code contrains errors when execute "./gradlew build" with jdk1.8.0_162 and gradle 4.7 #334
• Not able to see any stack trace related to my btrace #331
• my java script is too Bigger,can't run #325
• Location(kind = Kind.NEWARRAY) dimension always 1 #318
• how to run CRNK application with jersey Example #314
• BTraceUtils.str don't invoke toString() when instance is not in a collection. #226

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Change Log

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New Features and Improvements

• Provide JVM startup agent arguments via Sys.$(arg) #295
• Passing the class name dynamically to clazz parameter in BTrace script #298
• Invalid 'libs' argument should be detected and logged as warning #320
• BTraceUtils.printArray() should accept also primitive arrays #322
• Provide support for method parameters for CATCH, THROW and ERROR #327
• Allow specifying file extension for BTrace script packs #329

Fixed bugs:

• Impossible to build btrace with jdk1.7(jdk1.8 works fine) #323
• BTraceUtils.subtsr() parameter 'length' name is confusing #279

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Change Log

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Fixed bugs:

• Generating JavaDoc Task Fails #274
• Regression: NPE in Preprocessor.loadEventHandlers when trying to attach #305

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Fixed bugs:

• Using v1.3.10 fails with java.lang.VerifyError: StackMapTable error: bad offset #304

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Implemented enhancements:

• Allow exact type matching in signature checks #294
• Implement custom stackmap frame generation to avoid common supertype resoultions #293
• Pre-process and pre-verify BTrace probes during compilation #291
• Improve handling of the 'category' for embedded agent.properties #273

Fixed bugs:

• Bug: java.lang.VerifyError: Bad type on operand stack #283
• SYNC_ENTRY/EXIT instrumentor broken after #264 #269
• btrace doesn't execute OnExit event #266
• synchronized on method synExit never trigger! #264

Closed issues:

• Update JCTools to 2.1.1 #302
• Btrace failed in openjdk8 due to SecurityException #296
• Running JVM with BTrace agent and scripts should default 'noServer' to true #289
• Application running on jdk 1.7.0_79 crash when btrace attach #284
• NoClassDefFoundError of <TraceScript> in JBoss EAP7 #282
• Issue about buffer flushing. #281
• cannot get instance property #280
• traced method by annotation is not working well #278
• Got java.lang.IllegalArgumentException after starting the btrace #277
• java.lang.NoClassDefFoundError: sun/reflect/GeneratedMethodAccessor #275
• Missing information about time units for the duration reported by @Duration annotated parameter #265

Merged pull requests:

• fix sample JdbcQueries.java #272 (sel-fish)
• Fixes #264 #268 (yanfeipeng)

Change Log v1.3.9 (2017-01-11)

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Implemented enhancements:

• Add more substitutions for output file name templating #261
• Add support for configuration in 'agent.properties' #260
• Introduce convention for agent libs locations #259
• Make BTrace less scary by using 'trusted' mode instead of 'unsafe' #258
• BTrace causes JVM to crash on call tracing #240

Fixed bugs:

• Quantize throws java.lang.ArrayIndexOutOfBoundsException #253
• Specifying a method by annotation will not match in @OnMethod #249
• Problems tracing application server #231

Closed issues:

• Improve BTrace startup time #263
• Invoking methods on injected services is causing verification error #256
• How to print the local variable #255
• Tracing all object allocations #252
• fail to use btrace with 1.7.0_80 on mac #251
• Get Broken Pipe SocketException after exit brace. #250

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Change Log v1.3.8.3

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Merged pull requests:

• Instrumentation performance #248 (jbachorik)

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