Garbage collection enhancements are seemingly part of every Java platform release. Java 11, includes a passive garbage collector that does not reclaim memory. We will explore this in Chapter 7, Leveraging the Default G1 Garbage Collector.
Epsilon – an arbitrarily low-overhead garbage collector
by Dr. Edward Lavieri
Mastering Java 11 - Second Edition
- Title Page
- Copyright and Credits
- Dedication
- Packt Upsell
- Contributors
- Preface
- The Java 11 Landscape
- Technical requirements
- Understanding the Java platform's new versioning model
- Understanding the significance of Java 9
- Benefiting from changes introduced with Java 10
- Local variable type inference
- Consolidation of the JDK forest into a single repository
- Garbage collection interface
- Parallel full garbage collector for G1
- Application class-data sharing
- Thread-local handshakes
- Removal of the native-header generation tool (javah)
- Additional Unicode language-tag extensions
- Heap allocation on alternative memory devices
- Experimental Java-based JIT compiler
- Root certificates
- Benefiting from changes introduced with Java 11
- Summary
- Questions
- Further reading
- Discovering Java 11
- Technical requirements
- Improved contended locking
- Segmented code cache
- Smart Java compilation
- Resolving lint and doclint warnings 
- Tiered attribution for Javac 
- Annotations pipeline 2.0 
- New version-string scheme 
- Generating runtime compiler tests automatically 
- Testing class-file attributes generated by Javac 
- Storing interned strings in class-data sharing archives 
- Preparing JavaFX UI controls and Cascading Style Sheet APIs for modularization
- Compact strings 
- Merging selected Xerces 2.11.0 updates into JAXP 
- Updating JavaFX/Media to the newer version of GStreamer 
- HarfBuzz font-layout engine
- HiDPI graphics on Windows and Linux
- Marlin graphics renderer 
- Unicode 8.0.0
- Reserved stack areas for critical sections 
- Dynamic linking of language-defined object models 
- Additional tests for humongous objects in G1 
- Improving test-failure troubleshooting 
- Optimizing string concatenation 
- HotSpot C++ unit-test framework 
- Enabling GTK3 on Linux 
- New HotSpot build system 
- Consolidating the JDF forest into a single repository 
- Summary
- Questions
- Further reading
- Java 11 Fundamentals
- Technical requirements
- Working with variable handlers
- Import statement depreciation warnings
- Milling Project Coin
- Import statement processing
- Inferring local variables 
- Thread-local handshakes
- Heap allocation on alternative memory devices
- Root certificates
- Dynamic class-file constants
- Removal of the Java EE and CORBA modules
- Summary
- Questions
- Further reading
- Building Modular Applications with Java 11
- Migrating Applications to Java 11
- Technical requirements
- A quick review of Project Jigsaw
- How modules fit into the Java landscape
- Migration planning
- Advice from Oracle
- Runtime image changes
- Deploying your applications
- Useful tools
- Summary
- Questions
- Further reading
- Experimenting with the Java Shell
- Leveraging the Default G1 Garbage Collector
- Technical requirements
- Overview of garbage collection
- The pre-Java 9 garbage collection schema
- Collecting garbage with the new Java platform
- Persistent issues
- Summary
- Questions
- Further reading
- Microbenchmarking Applications with JMH
- Making Use of the Process API
- Fine-Grained Stack Tracing
- New Tools and Tool Enhancements
- Technical requirements
- Working with the HTTP client
- Understanding Javadoc and the Doclet API
- Changes to the Multiple JRE feature
- JavaScript Parser
- Multiple-release JAR files
- Java-level JVM Compiler Interface
- TIFF support
- Platform logging
- XML Catalogs
- Collections
- Platform-specific desktop features
- Enhanced method handling
- Enhanced depreciation
- The native header generation tool (javah)
- Summary
- Questions
- Further reading
- Concurrency Enhancements
- Security Enhancements
- Technical requirements
- Datagram Transport Layer Security
- Creating PKCS12 keystores
- Improving security application performance
- The TLS application-layer protocol negotiation extension
- Leveraging CPU instructions for GHASH and RSA
- OCSP stapling for TLS
- DRBG-based SecureRandom implementations
- Summary
- Questions
- Further reading
- Command-Line Flags
- Additional Enhancements to the Java Platform
- Future Directions
- Contributing to the Java Platform
- Assessment
- Other Books You May Enjoy
Epsilon – an arbitrarily low-overhead garbage collector
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