Java

Use this page to define the way data is displayed in the Java debugger.

Item	Description
Autoscroll to new local variables	Automatically scrolls to new variables that appear in the scope when stepping.
Predict condition values and exceptions based on data flow analysis.	Enables editor hints for boolean expressions or exceptions that are known beforehand based on information from data flow analysis. For more details, see Inline variables view.
Show	Declared type: shows the type of the variable that holds the reference to the object. Synthetic fields: shows synthetic fields (for example, compiler-generated fields of inner classes). $val fields as local variables: shows outside variables used in anonymous classes as if they were local. Requires Synthetic fields. Fully qualified names: shows fully qualified names for actual and declared types. Object id: provides the ID of the particular instance, for example, `java.util.ArrayList@798`. For ID to be displayed, the Show Types option needs to be enabled. Static fields: shows static fields in the Variables tab and tooltips. Static final fields: shows static final constants in the Variables tab and tooltips. Requires Static fields.
Show type for strings	Shows type for `java.lang.String` instances. When disabled, this type can be identified by the enclosing double quotes.
Show hex value for primitives	Adds hexadecimal format for `byte`, `short`, `int`, `long`, and `char` types. When enabled, both decimal and hexadecimal formats are shown.
Hide null elements in arrays and collections	Excludes `null` references when displaying the contents of arrays and classes that implement `Collection` (not applicable to descendants of `Map` ).
Auto populate Throwable object's stack trace	When the program is suspended after throwing an exception or error, its stack trace doesn't have any elements in it yet. For the stack trace to be populated, you have to call `getStackTrace()` on this `Throwable`. When Auto populate Throwable object's stack trace is enabled, IntelliJ IDEA does this for you.
Enable alternative view for Collection classes	Select this option to display contents of classes that implement `Collection`, `Map`, or `List` in a more convenient format (for example, to display each map entry as a key-value pair).
Enable toString() object view	Allows you to configure which classes use the result of `toString()` as their display value. When specified through fully qualified class names, this option applies to the descendants of these classes as well. You can also define a class pattern, using regular expressions syntax, for example: `.Test`: all classes called `Test` regardless of the package `javax.swing.`: all code in the `javax.swing` package and all its subpackages `?est.Tes?`: all classes starting with `Tes` followed by any letter in packages starting with any letter followed by `est` `.T`: all classes starting with `T` in all packages

Last modified: 31 March 2021